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Oct, 30, 1928.

F. E. WARNER TACK FASTENED STUD` FOR SNAP FASTENERS Filed July 23, 1927 lio Patented Oei. '30, 1928.

UNITE@ S'rari www FRANK E. WARNEBQQOF WATERB'URYQ'coriimoricnn assiduo?. To' scovlnr. iviaivii;

ivnorrcur.

, AGTURING CIOMPANY, or WATERBURY, coivnncrcnr, A oon-portarmi; or con;

Y A'intox-r'As'rni-irin 'STUD' non ras'rnnnns. j

Application fried. Aruiy aa,` ,1927il seriai no, ao'zgai.

The object of this invention is to provide 'a snap-'fastener nieinber, such as ay stud or hea d, with'nie'ans by which the ineniber niay bev set by applicationthereto of a tack or similar driven device, without liability to tipping.y

The .inventionr consists of a snap-fastener member-,having located within v:it-an element which frictionally` engages the shank ,the tack'and also embraces'it near its point', in such way that the snap-fastener ineniberV is securely attached to an article and liability to tipping is prevented, as I will proceed now to explain niore fully and finally claii'n.V

In the accompanying drawings illustrating vthe invention, in the several figures of which like parts are siinilarly designated, Figure l is a top plan view, and Figr is vertical section of the shell of a non-resilient stud or head member of a snap-fastener.Y Fig. 3 is a top plan view, Fig. 4 is a bottoni plan view'andv Fig. 5 isa vertical section of the taclvengaging element. Fig. 6 is a bottom plan view and Fig. 7 is a cross-section of the centrally depressed back of the stud or head. Fig. 8 is a top plan view and Fig. 9 is an elevation of Vone forni of attaching nieniber.

' tion, the: shell is composed of a non-resilient knob-like portion l, adaptedto engage the` compleinental resilient socket nieniber of asnap-fastener, and it has a laterally extend'- ing base 2 provided with a down-turned peripheral fiange 3. lNithin this shell is placed the tack-engaging eleinent 4l, composed of a Y single piece of steel or other hard nietal, bent vto forni a base 4 which is Lprovided,withan angular or other shaped hole 5, surrounded byy the jagged edges 6 made by the hole-piercing tool. The ends 7 and 8 of the piece of steel are curved longitudinally and ltransversely and bent upwardly and converged to form the upstanding element 9, inline with' the hole 5. v

This tack-engagingelernent is placed Within the shell, as indicated in Figs; l() and 1l, and then .the centrally depressed backl() is placed within the flange 3 and the flange closed down over its rirn, as 'indicated in Figs. 10 and 1l,`

whereby the tack-engaging element is securely therewith and li aving the Fig. lO isa vertif cal section of the assembled stud or head, and

clamped betweenthe shell vand back, as shown inFigs. IOandll, and the back of the shell closed.A .This backlO has aqholeall ofthe saine conformation as the hole 5 and in line The preferred shape of the holesaiidri'll lis triangular, as sliowinas'this shape., gives very satisfactory frictionalgrip on the shank clainied; nor is it necessary, although preferable, that the holes 5 and 11 be of the saine Y,

shape and conformation.V` v A rlhe fastening device, as shown in Figs. 8, 9 and 1l, may bea tack, having a head 13' and a pointed shank 14C of any usual or approved construction. It is preferred that the fasten'-A ing device should be poiiitedso as to pierce its own hole Ythrouo'hthe articleto which the Vstud or head is tobe applied.,r

As represented in` Fig. -Vll,vthe articleV l5v rhas the stud or head -placedonlonefside and Vthe tack enteredV thereinto from the other side, sufficient pressure being used to force the tack through the article. and `.through the holes 1l and 5', both of which holes are of slightly less diniensions than the'shankvof the tack so as to ensurek suficientfrictional en! inent, as indicated in- Fig. 11.

lt will be observed that the point of the tack.

p Jagged edges-. 12 Y .ina de by the hole-piercing tool;l f

isnot upset, and, therefore, it is unnecessary,

from asecuring or settingv pointV of view, that the end ofthe tack should corne in vcontact with theinner surface of or head. f y lithl the construction described, it is unnecessary -to provide any springs or other t1.1@klvlobfofthe stud' locking device than the back,'and particular-` ly the tack-engaging element 4, and to thiseX- tent the construction is greatly simplified and theinanufactiiring costs reduced.

l/Vhile the invention isA shown as applied to i a non-resilient stud or head, it is applicable to y a resilient stud or head. Y

'Seid' shell Aamd comprising a bese neming e hole through which the tack passes and by Which it is frictionelly engaged, and upstanding end members curved longitudine and transversely to coni'oiin to the she-nh of the teck and converging *coengage leading l end of the tack to prevent. tipping.

` 2.- A 1Lack-lfastened stud for snap-feseiiers, having zu shell :ind un internal one piece hard inetulvtacl-engeging member comprising a base having a edge hole through Which the tack passes and by which il; is lirictionally engaged, and upsuending end ineinbers shaped to conform tov the shank el the taci; and to engageits'leading end to preven tipping 3. A tack-fastened stud for snap-fasteners, comprising e knobbed shell having u flanged element, :i one piece teck-engaging element having e base provided ,with e jagged edge hole and upstfinding converging ends and located Within the shell, and e back secured' to -he flanged element and clamping @he teckengaging elementv in the shell. g Y

L tack-fastened sud for sngvp-listeners, comprising a linobbed elen'ienl and e: flanged element, un internal tech-engaging element havin@V a bese previden with a hole and upsanding converging ends, and e bach secured o 'he llanged element and -clan'iping the tackengugin element in the shell, the buck having ai hole in line with` the' hole in the tuck-engaging ele-nient und both ol the holes being jagged. 1 r

ln testimony Whereoil l have hereunto set my hund this Q2 dey of July A. D.4 1927.

. wenn WARNER 

